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https://raw.githubusercontent.com/nishantc1527/LeetCode/master/src/PalindromeNumber.java
public class PalindromeNumber {

    public boolean isPalindrome(int x) {
        if(x < 0 || ((x != 0) && (x % 10 == 0))) {
            return false;
        }

        int rev = 0;

        while(x>rev){
            rev = rev * 10 + x % 10;
            x /= 10;
        }

        return x == rev || x == rev / 10;
    }

}
